The "strongest" dust storm hit many provinces, why can't the shelter forest stop it?

The reason why shelterbelts can't stop sandstorms is actually very simple, because the main function of shelterbelts is to improve the sand-fixing ability of soil by planting trees, thus reducing soil desertification. But it is not wind-resistant, even if there are thousands of trees, it will not play much role in strong winds.

It is normal that the shelter forest can't play its role in such a harsh environment because of the strongest sandstorm formed under strong wind. We can understand that when the wind blows, trees are likely to be uprooted by the wind, and it is unlikely to stop the wind unless it is very light.

1. Will the frequency of sandstorms increase?

I think this sandstorm is only an accidental state, not a sign of the increase of sandstorm frequency. For example, the obvious area where this sandstorm happened is our northwest area. A few days before the sandstorm, the temperature in northwest China was relatively high and there was little precipitation, so there was more sand in the soil. Then there was a large-scale gale in the northwest, and sandstorms were formed under the action of gale. So this time, such a large-scale sandstorm happened because both of them worked at the same time. In fact, due to the construction of shelterbelts and the improvement of soil, the probability of sandstorms in China has been greatly reduced, so the frequency of sandstorms should not increase.

2. What does this dusty weather give us?

In fact, for dusty weather, we should not only intervene and prevent it manually, but also adjust some methods according to a state of nature. For example, in some places, it is not suitable for planting trees on a large scale. If we plant these trees by force, it may lead to a shortage of water nearby, so that even if we plant trees by force, the new water source can't meet its growth needs and will soon wither. Then, for this part of the place, it is necessary to adapt to local conditions, for example, some low-density decentralized planting methods can be adopted to achieve the purpose of protection and improvement.

3. Some precautions for driving in sandstorm weather.

Due to the influence of dust, the visibility in the air is very low. Therefore, we should pay special attention to driving in sandstorm weather, and try to avoid the high beam when driving, because turning on the high beam under the influence of dust will make the front line of sight more blurred. In addition, you need to hold the steering wheel tightly and pay attention to walking forward as slowly as possible.